EP0190776B1 - Mit einem pulverigen oder körnigen wasserlöslichen giftigen Produkt gefüllte Verpackung - Google Patents

Mit einem pulverigen oder körnigen wasserlöslichen giftigen Produkt gefüllte Verpackung Download PDF

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Publication number
EP0190776B1
EP0190776B1 EP86200043A EP86200043A EP0190776B1 EP 0190776 B1 EP0190776 B1 EP 0190776B1 EP 86200043 A EP86200043 A EP 86200043A EP 86200043 A EP86200043 A EP 86200043A EP 0190776 B1 EP0190776 B1 EP 0190776B1
Authority
EP
European Patent Office
Prior art keywords
tube
water
inner container
transverse
transverse joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86200043A
Other languages
English (en)
French (fr)
Other versions
EP0190776A1 (de
Inventor
Peter Reginald Kerry
Jeffrey Lloyd Lewis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Greif International Holding BV
Original Assignee
Koninklijke Emballage Industrie Van Leer BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Emballage Industrie Van Leer BV filed Critical Koninklijke Emballage Industrie Van Leer BV
Publication of EP0190776A1 publication Critical patent/EP0190776A1/de
Application granted granted Critical
Publication of EP0190776B1 publication Critical patent/EP0190776B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/38—Articles or materials enclosed in two or more wrappers disposed one inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles

Definitions

  • the invention relates to a package comprising a filled closed inner container made of a water-soluble flexible material, said inner container being placed inside a closed outer container made of flexible material which is resistant to water.
  • Such a package is known from GB-A 1 054 808.
  • Some chemical products in particular certain agricultural chemicals, are so toxic that they must not come into contact with parts of the human body. This requirement may present problems both in the filling of packages and in releasing the chemicals from the packages.
  • the inner container as well as the outer container of the known package is made of two rectangular sheets; the circumferential edge strips of the four sheets are connected on each other by heat sealing.
  • the sealing line is taken at an angle and at spacing from one corner, thereby to leave two lips on the respective sheets which may be parted with the fingers to start a tearing open operation for release of the packaged material.
  • the risk of a person opening this known package coming into contact with the packaged material is considerable. This is an inadmissible objection to the known package if it would be used for toxic chemicals.
  • the object of the invention is to construct a package of the above type in a manner such that during the transport of the filled packages and during the release of the substance concerned from the packages, the risk of anyone coming into contact with the substance is restricted to a minimum.
  • the above mentioned package is characterized in, that the inner container filled with a water-soluble toxic pulverulent or granular product consists of a flexible tube which is closed near its two ends by a transverse joint, an end strip extending outwards from each of said transverse joints, and that the outer container also consists of a flexible tube, which is closed near its two ends by a transverse joint, each of said end strips of the inner container being connected to a transverse joint of the outer container, and that a tear line is made in one of the end strips of the inner container.
  • the outer container which is not separately filled with product forms a protection for the filled inner container against moisture and mechanical effects.
  • the outer container is cut open and the inner container is removed from the outer container by tearing and is deposited in water where the film of the inner container and the toxic filling dissolve.
  • the invention further relates to a device for the manufacture of filled packages, comprising an upper pipe, means for placing around the upper pipe a first continuous tube of film or laminate, welding means of making a transverse joint all the way across the first tube, a lower pipe for receiving the first tube, means for placing a second continuous tube of film or laminate around the second pipe and welding means for making a transverse joint all the way across the first and second tube.
  • the welding means of making a transverse joint all the way across the first tube consists of two sets of welding elements spaced in the vertical direction, said sets being able to make two transverse joints and an end strip there between;
  • the device comprises means of making a tear line in the end strips and it comprises supplying means for the metered supply of product to the upper pipe.
  • the outer container could consist of a laminate of a optionally metallized film, kraft paper and a coating.
  • the invention is concerned with packages for toxic substances, for example agricultural chemicals, which must not come into contact with the human body both during the filling and packaging and during the transport of the packages and the release of the toxic substances from the packages.
  • the packages shown in Figures 1, 2, 3 incl. comprise two containers 1, 2 consisting of plastic film or a laminate.
  • the inner container 1 is manufactured from a water-soluble material, for example from polyvinyl alcohol. It is filled with a water-soluble toxic powder or granular product 3,
  • the outer container 2 acts as protection for the inner container 1 against moisture and mechanical effects.
  • the outer container is manufactured of a material which is resistant to water, for example a laminate of metallized polyester film, kraft paper and a coating of polyvinyl alcohol.
  • Both the inner and the outer containers consist of a tube which is closed at two ends by a transverse joint 4 or 5 respectively.
  • the end strips 6 of the inner container 1 are connected at their ends to a transverse joint 5 of the outer container 2.
  • a tear line 7 is perforated.
  • the transverse joints are intended to be normal heat welds.
  • the package In order to use the contents of the package, the package should be cut through approximately at the position of the arrow 8, after which the filled inner container can be torn out of the outer container (making use of the tear line 7) and can be ejected into water.
  • the material of the inner container can dissolve in water in a short time (for example, 1 minute) and the toxic product 3 (for example, a granular herbicide ) is released. Contact with the fingers or other parts of the body is entirely avoided.
  • FIG. 4 To manufacture the said package use can be made of the device according to Figure 4.
  • This comprises two form-fill-seal (FFS) machines 11, 12 following each other.
  • Each of the machines has a filling pipe 13 or 14 respectively, a supply device 15 or 16 respectively for packaging material which is wrapped around the filling pipe 1 or 14 respectively, a longitudinal welding device 17 or 18 respectively to weld the overlapping ends of the packaging material to each other to form a packaging tube, and transverse welding elements 19 or 20 respectively to close the inner tube and the outer tube respectively.
  • the transverse welding elements 20 also serve to join the end strip 6 projecting beyond the transverse weld 4 of the inner container 1 to the outer container 2.
  • the filling pipe 13 is connected via a funnel 21 to a metering device for the metered supply of toxic pulverulent or granular material.
  • This device may, inter alia, be controlled by feedback by means of a weighing device which weighs the finished packages and transmits corrective signals to the metering device.
  • the transverse welding elements 19 of the outer container are connected to a stationary support 22 and can only move perpendicularly to the direction of movement of the formed package. There are two pairs of transverse welding elements 19 between which a perforator 23 is situated for forming the tear line 7 in the packages.
  • transverse welding elements 20 which is mounted on a support 24 movable vertically upwards and downwards.
  • the elements 20 can move on the support 24 perpendicular to the direction of movement of the package.
  • a knife 25 with a stop can be mounted in the elements 20 to separate the finished packages from each other.
  • a package for 1 kg of granular herbicide having a density of 0.8-0.9 g/cm3 and a grain size between 0.5 and 1.0 mm consisted of an outer container with a length of 385 mm and a width of 215 mm, the sheet from which the outer container was made having a width of 450 mm.
  • the material of the outer container was a laminate of the following composition:
  • the inner package manufactured from a polyvinyl alcohol film having a thickness of 35 micron had a length of 275 mm and a width of 165 mm.
  • the initial sheet had a width of 350 mm. This film could dissolve in water at ambient temperature within one minute.
  • the film thickness can be somewhat greater, for ex- ampel 50 or 70 micron.
  • water-soluble container occupies a fixed position inside a flexible outer container resistant to water and that after the cutting open of the package the inner package with its dangerous contents remains inside the outer package until it is torn safely out of the outer container along the tear line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Claims (2)

1. Verpackung, die einen gefüllten, geschlossenen, inneren Behälter (1) aus einem wasserlöslichen flexiblen Material aufweist, wobei der innere Behälter im Inneren eines geschlossenen, äußeren Behälters (2) aus einem flexiblen Material angeordnet ist, das wasserbeständig ist, dadurch gekennzeichnet, daß der innere Behälter (1) mit einem wasserlöslichen, giftigen, pulvrigen oder körnigen Produkt gefüllt ist, das ein felxibler, schlauchförmiger Teil aufweist, das in der Nähe der beiden Enden mittels einer Querverbindung (4) geschlossen ist, das ein Endstreifen (6) von jeder der Querverbindungen (4) nach außen verläuft, und daß der äußere Behälter (2) ebenfalls ein flexibles, schlauchförmiges Teil aufweist, das in der Nähe der beiden Enden mittels einer Querverbindung (5) geschlossen ist, wobei jeder der Endstreifen (6) des inneren Behälters (1) mit einer Querverbindung (5) des äußeren Behälters (2) verbunden ist, und daß eine Reißlinie (7) in einem der Endstreifen (6) des inneren Behälters (1) vorgesehen ist.
2. Vorrichtung zum Herstellen der gefüllten Verpackungen nach Anspruch 1, die einen oberen, schlauchförmigen Teil (13), eine Einrichtung (15), welche um das obere schlauchförmige Teil (13) ein erstes, durchgehendes schlauchförmiges Teil aus einer Folie oder einem Laminat anordnet, eine Schweißeinrichtung (19, 23) zur Herstellung einer Querverbindung an dem ersten schlauchförmigen Teil, ein unteres, schlauchförmiges Teil (14) zur Aufnahme des ersten schlauchförmigen Teils, eine Einrichtung (16), welche ein zweites, durchgehendes Schlauchteil (16) aus einer Folie oder einem Laminat um das zweite schlauchförmige Teil (14) vorsieht, und eine Schweißeinrichtung (20) zur Herstellung einer Querverbindung über die ersten und zweiten schlauchförmigen Teile hinweg aufweist, dadurch gekennzeichnet, daß die Schweißeinrichtung zur Herstellung einer Querverbindung über das gesamte erste, schlauchförmige Teil hinweg zwei Sätze von Schweißelementen (19, beziehungsweise 23) aufweist, die in vertikaler Richtung in Abstand angeordnet sind, wobei die Sätze von Schweißelementen die beiden Querverbindungen (4, 5) und einen Endstreifen (6) dazwischen ausbilden können, daß eine Einrichtung zum Herstellen einer Reißlinie (7) in den Endstreifen vorgesehen ist, und daß die Vorrichtung eine Zufuhreinrichtung für eine zugemessene Produktmenge zu dem oberen, schlauchförmigen Teil (13) hat.
EP86200043A 1985-01-14 1986-01-10 Mit einem pulverigen oder körnigen wasserlöslichen giftigen Produkt gefüllte Verpackung Expired EP0190776B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8500076A NL8500076A (nl) 1985-01-14 1985-01-14 Verpakking gevuld met een in water oplosbaar giftig poeder- of korrelproduct.
NL8500076 1985-01-14

Publications (2)

Publication Number Publication Date
EP0190776A1 EP0190776A1 (de) 1986-08-13
EP0190776B1 true EP0190776B1 (de) 1989-05-10

Family

ID=19845359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200043A Expired EP0190776B1 (de) 1985-01-14 1986-01-10 Mit einem pulverigen oder körnigen wasserlöslichen giftigen Produkt gefüllte Verpackung

Country Status (5)

Country Link
US (1) US4681228A (de)
EP (1) EP0190776B1 (de)
JP (1) JPS61164983A (de)
DE (1) DE3663246D1 (de)
NL (1) NL8500076A (de)

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US3958749A (en) * 1974-04-12 1976-05-25 St. Regis Paper Company Gusseted pinch bottom breakaway pouch bag
US4226330A (en) * 1976-11-01 1980-10-07 Butler Robert W Rupture lines in flexible packages
EP0049978A1 (de) * 1980-10-14 1982-04-21 Frank John Rowell Behälter und Verfahren und Maschine zu seiner Herstellung
DE3104399A1 (de) * 1981-02-07 1982-11-04 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum herstellen von schlauchbeutelpackungen

Also Published As

Publication number Publication date
US4681228A (en) 1987-07-21
EP0190776A1 (de) 1986-08-13
DE3663246D1 (en) 1989-06-15
NL8500076A (nl) 1986-08-01
JPH0360751B2 (de) 1991-09-17
JPS61164983A (ja) 1986-07-25

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